Security bars are especially useful for protecting basement windows or for protecting windows in warehouses as they provide visual deterrence as well as providing barrier security.

Aluminum grates and steel grates can be used as tree grates and guards in a variety of sizes and shapes.

Mechanical industry, for protection, filtering, ventilation grids, various steel structures.

A plurality of sources are located on the second layer, A plurality of gates are ion implanted in the second layer, an end one of the gates being connected to all of the plurality of gates and constituting a gate bus.

The primary objective of this invention is an instant opening mechanism for closures, especially grills or security devices for windows, doors, ventilation ducts or similar.

The grids of the insulating area are random grids with irregular shapes.

The invention also relates to a fuel assembly comprising, in addition to the structural spacing grids, end grids and additional mixture grids interleaved between said structural spacing grids.

Control gates (220-223) extend between floating gates so that two control gates couple to a floating gate.

Disclosed are composite arrays and methods of forming the arrays.

The insulating area has metal grids (13), and the grids of the insulating area are comprised of grid lines of the insulating area.

The invention relates to ventilation grilles (22, 24), ventilation grille frames (10) and ventilation grille slats (12, 14), and to methods of producing ventilation grilles (22, 24).

Each of the leadframe assemblies may define a leadframe mating sequence.

The control gate lines are preferably positioned between floating gates to be coupled with sidewalls of floating gates.

Withdrawal screens for digesters are conventionally made either as profile bar screens or machine slotted screens.

The gate trenches (20) include insulated gates (16).